*{margin: 0;padding: 0;}/*样式重置*/
ul{
    overflow: hidden;
}
ul>*{
    float: left;
}
li{
    list-style: none;/*去除默认标点*/
}
a{
    color: black;
    text-decoration: none;/*去除下划线*/
}
input[type=text]{
    border: none;
    outline: none;
}
